WO2018157584A1

WO2018157584A1 - Calling method and terminal

Info

Publication number: WO2018157584A1
Application number: PCT/CN2017/102797
Authority: WO
Inventors: 刘昊晨
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-02-28
Filing date: 2017-09-21
Publication date: 2018-09-07
Also published as: CN108696854A; CN108696854B

Abstract

A calling method and a terminal, the method comprising: receiving a first call instruction when in an emergency call mode, and determining whether at least two call modes are supported according to the first call instruction (S101); when determining that at least two call modes are supported, determining a priority network according to a preset call strategy, the priority network corresponding to a first call mode among the at least two call modes, and the preset call strategy being configured to determine the priority network corresponding to the first call mode among the at least two call modes (S102); carrying out a first call in response to the first call instruction using the first call mode (S103); and when the first call fails, switching the first call mode to a second call mode to carry out a second call, the second call mode being a call mode among the at least two call modes other than the first call mode (S104).

Description

Call method and terminal

Technical field

This document relates to, but is not limited to, wireless communication technologies in the field of communications, and in particular, to a calling method and terminal.

Background technique

Today, with the development of communication technology, mobile terminals play an important role in the daily life of users. Users can use mobile terminals to keep in touch with the outside world anytime and anywhere, and the network standard is also controlled by the second and third generation mobile communication technologies. 3G, 2, 3rd-Generation) evolved into Long Term Evolution (LTE). As communication standards continue to update, users communicate with the outside world faster and faster, when mobile terminals cannot find a suitable cell. The phone enters the emergency call mode when it is parked or if the SIM (Subscriber Identification Module) card is not inserted, or when the location registration fails.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiments of the present invention are expected to provide a calling method and a terminal, which can improve the success rate of an emergency call.

An embodiment of the present invention provides a calling method, where the method includes:

Receiving the first call instruction when in the emergency call mode, and determining whether to support at least two call modes according to the first call instruction;

When it is determined that the at least two call modes are supported, determining a priority network according to a preset call policy, where the priority network corresponds to a first call mode of the at least two call modes, where the preset call policy is used for determining The priority network corresponding to the first call mode in the at least two call modes;

Responding to the first call instruction, using the first call mode to perform a first call;

When the first call fails, the first call mode is switched to a second call mode for performing a second call, and the second call mode is the first call mode of the at least two call modes Outside call mode.

In the above method, the switching the first call mode to the second call mode for performing the second call includes:

Sending a first call failure message to the network side device;

Receiving, by the network side device, a handover instruction, where the handover instruction is used to indicate that the priority network is disconnected and is switched to a backup network, where the standby network is a network corresponding to the second call mode;

And switching the first call mode to the second call mode corresponding to the standby network according to the switching instruction, and performing the second call.

In the above method, after the determining whether the at least two call modes are supported, before the determining the priority network according to the preset call policy, the method further includes:

Obtaining a judgment result, and displaying the judgment result, where the judgment result includes at least two current networks corresponding to the at least two call modes.

In the above method, the determining the priority network according to the preset call policy includes:

Determining the priority network from the at least two current networks according to a preset priority principle; or determining the priority network from the at least two current networks according to a user's prioritized setting according to the determination result.

In the above method, the determining the priority network from the at least two current networks according to a preset priority principle, including:

And sorting the at least two current networks according to the preset indicator, and determining, according to the sorting result, the current network with the best preset indicator from the at least two current networks as the priority network.

In the above method, before the receiving the first call instruction, the method further includes:

Sending a network registration request to the network side device to request access to at least two current networks, where the at least two current networks correspond to the at least two call modes;

Receiving a first response command sent by the network side device in response to the network registration request, and implementing access of the at least two current networks according to the first response instruction.

In the above method, the determining whether to support at least two call modes includes:

Determining whether the at least two call modes are supported according to the first response instruction.

In the above method, after the determining whether to support at least two call modes, the method further includes:

When it is determined that the at least two call modes are not supported, the third call mode is performed by using the acquired third call mode, and the third call mode is displayed, where the third call mode is the at least two call modes. Any of the call modes.

An embodiment of the present invention provides a terminal, where the terminal includes:

a receiving unit, configured to receive a first call instruction when in an emergency call mode, and determine whether to support at least two call modes according to the first call instruction;

a determining unit, configured to: when it is determined that the at least two call modes are supported, determine a priority network according to a preset call policy, where the priority network corresponds to a first call mode of the at least two call modes, the preset a call policy is used to determine the priority network corresponding to the first call mode in the at least two call modes;

a calling unit, configured to perform the first call by using the first call mode in response to the first call instruction;

a switching unit, configured to switch the first call mode to a second call mode to perform a second call when the first call fails, and the second call mode is a middle of the at least two call modes The call mode outside the first call mode.

In the above terminal, the terminal further includes:

Sending unit

The sending unit is configured to send a first call failure message to the network side device;

The receiving unit is further configured to receive a switching instruction sent by the network side device, where the switching instruction is used to indicate that the priority network is disconnected and is switched to a standby network, where the standby network corresponds to the second call mode network of;

The switching unit is configured to switch the first call mode to the second call mode corresponding to the standby network according to the switching instruction, and perform the second call.

In the above terminal, the terminal further includes: a display unit;

The display unit is configured to obtain a determination result, and display the determination result, where the determination result includes at least two current networks corresponding to the at least two call modes.

In the above terminal, the determining unit is configured to determine the priority network from the at least two current networks according to a preset priority principle; or, according to a priority setting preset by the user according to the determination result, Determining the prioritized network in at least two current networks.

In the above terminal, the terminal further includes: a sorting unit;

The sorting unit is configured to sort the at least two current networks according to preset indicators;

The determining unit is further configured to determine, according to the sorting result, the current network with the best preset indicator from the at least two current networks as the priority network.

In the above terminal, the sending unit is further configured to send a network registration request to the network side device to request access to at least two current networks, where the at least two current networks correspond to the at least two call modes;

The receiving unit is further configured to receive a first response command sent by the network side device and respond to the network registration request, and implement access of the at least two current networks according to the first response instruction.

In the above terminal, the terminal further includes: a determining unit;

The determining unit is configured to determine, according to the first response instruction, whether the at least two call modes are supported.

In the foregoing terminal, the calling unit is further configured to: when it is determined that the at least two call modes are not supported, perform the third call by using the acquired third call mode;

The display unit is further configured to display the third call mode, and the third call mode is any one of the at least two call modes.

The embodiment of the invention provides a calling method and a terminal, the method comprising: when in an emergency call When the mode is called, the first call instruction is received, and according to the first call instruction, it is determined whether at least two call modes are supported; when it is determined that at least two call modes are supported, the priority network is determined according to the preset call policy, and the priority network corresponds to at least a first call mode of the two call modes, the preset call policy is used to determine a priority network corresponding to the first call mode of the at least two call modes; and the first call mode is used to perform the first call in response to the first call instruction; When the first call fails, the first call mode is switched to the second call mode for the second call, and the second call mode is a call mode other than the first call mode among the at least two call modes. With the above solution, when the terminal supports at least two call modes, when the terminal is in the emergency call mode, the terminal first performs the first call by using the first call mode corresponding to the priority network, so that in the case that the first call fails. The terminal can be switched from the priority network to the standby network, so that the terminal can perform the second call by using the second call mode corresponding to the standby network to complete the emergency call process, thereby improving the success rate of the emergency call.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a flowchart 1 of a calling method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an exemplary method for determining whether a terminal supports an IMS call according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram showing an exemplary display of whether an IMS call is supported according to an embodiment of the present disclosure;

4 is a schematic diagram of two setting modes on an exemplary terminal setting interface according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an exemplary terminal initiating an emergency call in a service limited mode according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an exemplary handover from an IMS call to a CS domain according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an exemplary handover from a CS domain call to an IMS call according to an embodiment of the present invention; FIG.

FIG. 8 is a second flowchart of a calling method according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram 1 of a terminal according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram 2 of a terminal according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram 3 of a terminal according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram 4 of a terminal according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram 5 of a terminal according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram 6 of a terminal according to an embodiment of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings.

In a network that does not support LTE calls, the emergency call sent by the mobile terminal uses a traditional circuit (CS, Circuit Switch) domain call; in a network that supports LTE calls, when the mobile terminal sends an emergency call, the terminal can register for LTE. After that, the voice protocol of the Internet Protocol Multimedia Subsystem (IMS) is completed.

However, when the IMS emergency voice call fails, the emergency call fails. At this time, the user needs to re-initiate an emergency call, resulting in a low emergency call success rate.

The embodiment of the invention provides a calling method. As shown in FIG. 1 , the method may include:

S101. When in the emergency call mode, receive the first call instruction, and determine, according to the first call instruction, whether to support at least two call modes.

A calling method provided by an embodiment of the present invention is applicable to a scenario in which an emergency call is placed in a terminal.

In the embodiment of the present invention, when the terminal does not have a SIM card, or when the terminal is in a service limited mode such as an airplane mode, the terminal cannot perform normal communication. At this time, the terminal can only initiate an emergency call.

In the embodiment of the present invention, the at least two call modes may include an IMS emergency call mode corresponding to an LTE network, and a Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Global mobile The CS domain call mode corresponding to the network such as the communication system (GSM, Global System for Mobile Communication) is specifically selected according to the actual situation, and is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, the terminal initiates an emergency call condition that the terminal supports at least two call modes. When the terminal initiates an emergency call, it first determines whether the terminal supports at least two call modes, and only when the terminal supports at least two call modes. When the terminal fails in the first call mode, the terminal can switch to the second call mode to continue the call.

In the embodiment of the present invention, when the terminal is in the emergency call mode, the terminal receives the first call command sent by the user, and the terminal starts to determine whether to support at least two call modes according to the received first call command. Optionally, the terminal first The device is registered on the network side device. After the terminal completes the registration on the network side device, the network side device sends a first response command to the terminal, and the terminal determines whether to support at least two call modes according to the first response command.

Exemplarily, in the case where the LTE network and the WCDMA network coexist, the terminal registers on the WCDMA network. After the terminal successfully registers the WCDMA network, the network side device sends a registration success command to the terminal, and after receiving the registration success command, the terminal receives the registration success instruction. The terminal determines to support the CS domain call. As shown in FIG. 2, the terminal initiates a registration request to the LTE network through the Attach request Meg attach request message. When the terminal completes registration on the LTE network, the network side device replies to the terminal by attaching a Meg attach response message. And carrying the Emergency bearer services in S1 Mode supported field in the Attach accept Meg attach response message, the field may indicate whether the IMS emergency call is supported, and when the field is 1, the support is supported. IMS emergency call, when this field is 0, it means that IMS emergency call is not supported.

S102. When it is determined that the at least two call modes are supported, determining the priority network according to the preset call policy, where the priority network corresponds to the first call mode of the at least two call modes, and the preset call policy is used to determine the at least two call modes. The priority network corresponding to the first call mode.

When the terminal determines that at least two call modes are supported, the terminal determines the priority network for prioritizing the emergency call.

In the embodiment of the present invention, the terminal is preset with a preset call policy. When the terminal determines that at least two call modes are supported, the terminal determines the at least two call modes according to the preset call policy. The first call mode corresponding to the priority network in which the call is prioritized.

Optionally, the terminal in the embodiment of the present invention may determine the priority network from the at least two current networks according to the preset priority principle. Optionally, the terminal sorts the at least two current networks according to the preset indicator, according to the sorting result. Determining the current network with the best preset indicator from the at least two current networks as the priority network, or determining the priority network from at least two current networks according to the user's prior priority setting according to the judgment result, and setting according to the actual situation. The embodiment of the present invention is not specifically limited.

Exemplarily, as shown in FIG. 3, on the setting interface of the mobile phone, there are two options for setting the emergency call, one is “adaptive optimal mode”, and the other is “manual setting mode”, when the user selects “self” When adapting to the optimal mode, the mobile phone selects the optimal network as the priority network according to the acquired network capability. When the user selects the “manual setting mode”, the user selects the priority network from at least two current networks in the setting interface.

It can be understood that the terminal will display the judgment result of at least two call modes, and the user can select the priority network according to the judgment result. When the user is familiar with the network standard, the user can set the initiative according to the network environment in which the user is located. Call mode saves time for initiating an emergency call.

In the embodiment of the present invention, when the terminal determines that at least two call modes are supported, the terminal performs display according to the determination result, where the determination result includes at least two current networks corresponding to at least two call modes, and at this time, the terminal determines priority. The network is gone.

Exemplarily, as shown in FIG. 4, the bottom layer of the modem modem of the terminal obtains an IMS emergency call by parsing the Attach accept Meg attach response message, and the terminal sets an interface in advance, and the modem bottom layer reports whether the IMS emergency call is supported through the interface. User interface (UI, User Interface). After receiving the message reported by the modem, the UI interface adds an icon to the status bar to prompt the user whether to support the IMS emergency call.

In the embodiment of the present invention, the terminal may determine the priority network from the at least two current networks according to the preset call policy. When the terminal fails to use the priority network to perform the first call, the terminal determines the backup network from the at least two current networks. The second call can be determined by the terminal from the at least two current networks according to the preset call policy. When the terminal fails to use the priority network to perform the first call, the terminal directly uses the backup network to perform the second call, according to the specific call. Actual situation The row setting is not specifically limited in the embodiment of the present invention.

Optionally, when the terminal determines that the at least two call modes are not supported, the terminal initiates a third emergency call by using a third call mode of the at least two call modes, and displays a third call mode corresponding to the third emergency call.

Exemplarily, as shown in FIG. 5, when the mobile phone is in a service limited mode such as an airplane mode, the mobile phone determines by using an ims-EmergencySupport-r9 field in a system information block (SIB1, System Information Block Type 1) of the network side device. Whether the mobile phone supports the IMS emergency call in the service limited mode; the mobile phone saves the ims-EmergencySupport-r9 field. When the mobile phone initiates an emergency call, if the ims-EmergencySupport-r9 field is 1, the interface prompts that the IMS emergency call is being called out. If the ims-EmergencySupport-r9 field is 0, the emergency call of the CS domain is directly initiated, and at the same time, the CS domain emergency call is being called out.

It can be understood that, when the terminal determines that the at least two modes are not supported, the terminal uses the third call mode of the at least two call modes to initiate the third emergency call, and displays the third call mode corresponding to the third emergency call. When the user knows the currently available network, the success rate of the priority network set by the user is improved.

S103. Respond to the first call instruction, and perform the first call by using the first call mode.

After the terminal determines the priority network, the terminal responds to the first call instruction, and performs the first call by using the first call mode corresponding to the priority network.

In the embodiment of the present invention, when the terminal determines that the LTE network is the priority network, the terminal uses the IMS emergency call mode to perform the first call; when the terminal determines that the WCDMA, CDMA, and other networks are the priority network, the terminal uses the CS domain emergency call mode. First call.

S104. When the first call fails, the first call mode is switched to the second call mode for the second call, and the second call mode is a call mode other than the first call mode of the at least two call modes.

When the terminal performs the first call in the first call mode, the first call success and the first call failure result are generated. When the terminal fails to use the first call mode to perform the first call, the terminal starts to determine the corresponding corresponding to the backup network. The second call mode switches the first call mode to the second call mode for the second call.

Optionally, in the embodiment of the present invention, when the terminal fails to use the first call mode to perform the first call, the terminal sends a first call failure message to the network side device, and the network side device receives the first call failure message sent by the terminal. The network side device sends a handover instruction carrying the information about the second call mode corresponding to the backup network to the terminal according to the first call failure message, and the terminal receives the handover instruction sent by the network side device, and disconnects the priority network according to the handover instruction. And switching to the standby network, and using the second call mode corresponding to the standby network to perform the second call.

Exemplarily, as shown in FIG. 6, the mobile phone first initiates an IMS emergency call on the LTE network. When the mobile phone receives the IMS emergency call sent by the network side device, the mobile phone sends an Extended Service Request (ESR) message to the mobile phone. On the network side device, the message type of the ESR message is mobile originating CS fallback emergency call. At this time, the network side device sends a Radio Resource Control (RRC) Connection Release message to tell the mobile phone to disconnect from the LTE network and carry the terminal. The indication of the CS domain call is made on the WCDMA network, after which the terminal completes the CS domain emergency call on the WCDMA network.

Exemplarily, as shown in FIG. 7, when the mobile phone is currently registered on the LTE network, the user sets the priority network to the network corresponding to the CS domain call mode. At this time, the mobile phone first initiates a CS domain emergency call on the WCDMA network, when the mobile phone Upon receiving the failure of the CS domain emergency call sent by the network side device, the mobile phone initiates registration on the LTE emergency call server and initiates an IMS emergency call.

It can be understood that, when the terminal supports at least two call modes, when the terminal is in the emergency call mode, the terminal first performs the first call by using the first call mode corresponding to the priority network, and when the first call fails, the terminal The priority network is switched to the standby network, and the second call mode corresponding to the backup network is used to perform the second call, so that when the terminal fails to use the first call mode corresponding to the priority network to perform the first call failure, the user re-initiates the sequential emergency call, which can improve The success rate of emergency calls.

An embodiment of the present invention provides a calling method. As shown in FIG. 8, the method may include:

S201. The terminal sends a network registration request to the network side device to request access to at least two current networks, and at least two current networks correspond to at least two call modes.

A calling method provided by an embodiment of the present invention is applicable to a scenario in which an emergency call is made by a terminal.

In the embodiment of the present invention, when the terminal is turned on, the terminal searches for the current network and registers the current network. First, the terminal sends a network registration request to the network side device, requesting the network side device to send a list of accessible networks.

S202. The terminal receives a first response command sent by the network side device in response to the network registration request, and implements access of at least two current networks according to the first response instruction.

After the terminal sends the network registration request to the network side device, the network side device sends a first response command to the terminal, and the terminal successfully accesses the at least two current networks according to the received first response command.

In the embodiment of the present invention, the network side device sends a list of accessible networks to the terminal according to the network registration request sent by the terminal, and the terminal selects at least two current networks from the list of accessible networks, and sends the selection result to the network side. The device, the network side device accesses the terminal to at least two current networks according to the selection result, and completes the terminal access to at least two current networks.

In the embodiment of the present invention, the first response instruction carries the judgment information for determining whether to support at least two call modes.

In the embodiment of the present invention, at least two current networks correspond to at least two call modes.

S203. When the terminal is in the emergency call mode, the terminal receives the first call instruction, and determines, according to the first call instruction, whether to support at least two call modes.

Here, the description of S203 in the embodiment of the present invention is the same as the description in S101 in the first embodiment, and details are not described herein again.

S204. The terminal acquires the determination result, and displays the determination result, where the determination result includes at least two current networks corresponding to at least two call modes.

When the terminal determines whether at least two call modes are supported, the terminal acquires the judgment result and displays the judgment result. The judgment result obtained by the terminal may include at least two current networks corresponding to at least two call modes.

In the embodiment of the present invention, when the terminal obtains whether to support at least two call modes, the terminal displays the current network corresponding to each of the at least two call modes supported by the terminal to the display interface of the terminal.

Exemplarily, as shown in FIG. 4, the modem bottom layer of the terminal obtains an IMS emergency call by parsing the Attach accept Meg attach response message, and the terminal presets an interface, the Modem. The bottom layer reports whether the IMS emergency call is supported to the user interface (UI, User Interface) through the interface. After receiving the message reported by the Modem, the UI interface adds an icon to the status bar to prompt the user whether to support the IMS emergency call.

S205. When the terminal determines that the at least two call modes are supported, determining the priority network according to the preset call policy, where the priority network corresponds to the first call mode of the at least two call modes, and the preset call policy is used to determine the at least two call modes. The priority network corresponding to the first call mode.

Here, the description of S205 in the embodiment of the present invention is the same as the description in S102 in the first embodiment, and details are not described herein again.

S206. The terminal responds to the first call instruction, and performs the first call by using the first call mode.

Here, the description of S206 in the embodiment of the present invention is the same as the description in S103 in the first embodiment, and details are not described herein again.

S207. When the first call fails, the terminal sends a first call failure message to the network side device.

When the terminal fails to use the first call mode to perform the first call, the terminal sends a first call failure message to the network side device to perform a handover operation.

In the embodiment of the present invention, when the terminal fails to use the first call to perform the first call, the terminal sends a first call failure message to the network side device.

S208. The terminal receives a handover instruction sent by the network side device, where the handover instruction is used to indicate that the priority network is disconnected and is switched to the standby network, where the backup network is a network corresponding to the second call mode.

After the terminal sends the first call failure message to the network side device, the network side device sends a handover instruction that carries the information about the standby network to the terminal.

In the embodiment of the present invention, when the network side device fails to receive the first call sent by the terminal, the network side device sends, to the terminal, a handover instruction that carries information about the standby network to be switched.

S209. The terminal switches the first call mode to the second call mode corresponding to the standby network according to the handover instruction, and performs a second call, where the second call mode is a call mode other than the first call mode.

After receiving the handover command sent by the network side device, the terminal switches from the first call mode corresponding to the priority network to the second call mode corresponding to the standby network according to the handover instruction, and performs the second call.

In the embodiment of the present invention, after receiving the information related to the standby network to be switched, the terminal switches from the priority network to the standby network, and performs the second call by using the second call mode corresponding to the standby network.

Exemplarily, as shown in FIG. 6, the mobile phone first initiates an IMS emergency call on the LTE network. When the mobile phone receives the IMS emergency call sent by the network side device, the mobile phone sends an Extended Service Request (ESR) message to the mobile phone. On the network side device, the message type of the ESR message is mobile originating CS fallback emergency call. At this time, the network side device sends a Radio Resource Control (RRC) Connection Release message to tell the mobile phone to disconnect from the LTE network and carry the indication. The terminal performs a CS domain call on the WCDMA network, after which the terminal completes the CS domain emergency call on the WCDMA network.

S210. When the terminal determines that the at least two call modes are not supported, the terminal performs the third call by using the acquired third call mode, and displays a third call mode, where the third call mode is any one of the at least two call modes. Call mode.

In the embodiment of the present invention, after the terminal determines whether to support at least two types of call modes, two judgment results are generated, respectively, that the at least two call modes are supported and the at least two call modes are not supported, and the terminal determines that at least two are not supported. In the call mode, the terminal initiates a third emergency call by using a third call mode of at least two call modes, and displays a third call mode corresponding to the third emergency call.

It can be understood that when the terminal determines that at least two modes are not supported, the terminal adopts at least two. The third call mode in the call mode initiates the third emergency call, and displays the third call mode corresponding to the third emergency call. When the user knows the currently available network, the success rate of the priority network set by the user is improved.

The embodiment of the present invention provides a terminal 1. As shown in FIG. 9, the terminal 1 may include:

The receiving unit 10 is configured to receive the first call instruction when in the emergency call mode, and determine whether to support at least two call modes according to the first call instruction.

The determining unit 11 is configured to: when it is determined that the at least two call modes are supported, determine a priority network according to a preset call policy, where the priority network corresponds to a first call mode of the at least two call modes, the pre- The call policy is configured to determine the priority network corresponding to the first call mode in the at least two call modes.

The calling unit 12 is configured to perform the first call by using the first call mode in response to the first call instruction.

The switching unit 13 is configured to switch the first call mode to the second call mode to perform a second call when the first call fails, and the second call mode is divided by the at least two call modes a call mode outside the first call mode.

Optionally, the terminal 1 further includes: a sending unit 14 , as shown in FIG. 10 .

The sending unit 14 is configured to send a first call failure message to the network side device.

The receiving unit 10 is further configured to receive a switching instruction sent by the network side device, where the switching instruction is used to indicate that the priority network is disconnected and is switched to a standby network, where the standby network is the second calling mode. Corresponding network.

The switching unit 13 is configured to switch the first call mode to the second call mode corresponding to the standby network according to the switching instruction, and perform the second call.

Optionally, based on FIG. 9 , as shown in FIG. 11 , the terminal 1 further includes: a display unit 15 .

The display unit 15 is configured to obtain a determination result, and display the determination result, where the determination result includes at least two current networks corresponding to the at least two call modes.

Optionally, the determining unit 11 is configured to determine the priority network from the at least two current networks according to a preset priority principle; or, according to a priority setting preset by the user according to the determination result, Determining the prioritized network in at least two current networks.

Optionally, based on FIG. 11 , as shown in FIG. 12 , the terminal 1 further includes: a sorting unit 16 .

The sorting unit 16 is configured to sort the at least two current networks according to preset indicators.

The determining unit 11 is further configured to determine, according to the sorting result, the current network with the best preset indicator from the at least two current networks as the priority network.

Optionally, the sending unit 14 is further configured to send a network registration request to the network side device to request access to the at least two current networks, where the at least two current networks correspond to the at least two call modes.

The receiving unit 10 is further configured to receive a first response command sent by the network side device in response to the network registration request, and implement access of the at least two current networks according to the first response instruction.

Optionally, based on FIG. 12, as shown in FIG. 13, the terminal 1 further includes: a determining unit 17.

The determining unit 17 is configured to determine, according to the first response command, whether the at least two call modes are supported.

Optionally, the calling unit 12 is further configured to: when it is determined that the at least two call modes are not supported, perform the third call by using the acquired third call mode.

The display unit 15 is further configured to display the third call mode, and the third call mode is any one of the at least two call modes.

As shown in FIG. 14, in the actual application, the determining unit 11, the calling unit 12, the switching unit 13, the display unit 15, the sorting unit 16, and the determining unit 17 can be implemented by the processor 18 located on the terminal 1, specifically for central processing. (CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA), etc., display unit 11 is provided by display 19 implementation, the receiving unit 10 can be implemented by the receiver 110, the transmitting unit 14 can be implemented by the transmitter 111, the terminal 1 can also include a memory 112, the memory 112, the display 19, the receiver 110 and the transmitter 111 can be connected to the processor 18. The memory 112 is configured to store executable program code, including computer operating instructions, the memory 112 may include high speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by the processor to implement the method described in the foregoing embodiments.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules, or other data. , removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each of the processes and/or blocks in the flowcharts and/or block diagrams, and in the flowcharts and/or block diagrams, can be implemented by computer program instructions. / or a combination of boxes. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

With the above solution, the terminal can improve the success rate of the emergency call when the first call fails and the second call is completed to complete the emergency call process, while supporting at least two call modes.

Claims

A calling method, the method comprising:

Receiving the first call instruction when in the emergency call mode, and determining whether to support at least two call modes according to the first call instruction (S101);

When it is determined that the at least two call modes are supported, determining a priority network according to a preset call policy, where the priority network corresponds to a first call mode of the at least two call modes, where the preset call policy is used for determining The priority network corresponding to the first call mode in the at least two call modes (S102);

Responding to the first call instruction, using the first call mode to make a first call (S103);

When the first call fails, the first call mode is switched to a second call mode for performing a second call, and the second call mode is the first call mode of the at least two call modes Outgoing call mode (S104).
The method of claim 1, wherein the switching the first call mode to the second call mode for a second call (S104) comprises:

Sending a first call failure message to the network side device (S207);

Receiving a handover command sent by the network side device, the handover instruction is used to indicate that the priority network is disconnected and is switched to a backup network, where the backup network is a network corresponding to the second call mode (S208);

And switching the first call mode to the second call mode corresponding to the standby network according to the switching instruction, and performing the second call (S209).
The method of claim 1 further comprising:

After determining whether the at least two call modes are supported, before determining the priority network according to the preset call policy, obtaining a determination result, and displaying the determination result, where the determination result includes the at least two call modes corresponding to At least two current networks (S204).
The method according to claim 3, wherein the determining the priority network according to the preset call policy (S102) comprises:

Determining the priority network from the at least two current networks according to a preset priority principle; or The priority network is determined from the at least two current networks according to a user's prioritized setting according to the determination result.
The method according to claim 4, wherein the determining the priority network from the at least two current networks according to a preset priority principle comprises:

And sorting the at least two current networks according to the preset indicator, and determining, according to the sorting result, the current network with the best preset indicator from the at least two current networks as the priority network.
The method of claim 1 further comprising:

Before receiving the first call instruction, sending a network registration request to the network side device to request access to at least two current networks, where the at least two current networks correspond to the at least two call modes (S201);

Receiving a first response instruction sent by the network side device in response to the network registration request, and implementing access of the at least two current networks according to the first response instruction (S202).
The method of claim 6, wherein the determining whether to support at least two call modes comprises:

Determining whether the at least two call modes are supported according to the first response instruction.
The method of claim 1 further comprising:

After determining whether the at least two call modes are supported, when it is determined that the at least two call modes are not supported, the third call mode is performed by using the acquired third call mode, and the third call mode is displayed, The third call mode is any one of the at least two call modes (S210).
A terminal (1), the terminal (1) comprising:

The receiving unit (10) is configured to receive the first call instruction when in the emergency call mode, and determine whether to support at least two call modes according to the first call instruction;

a determining unit (11) configured to: when it is determined that the at least two call modes are supported, determine a priority network according to a preset call policy, where the priority network corresponds to a first call mode of the at least two call modes, The preset call policy is used to determine the priority network corresponding to the first call mode in the at least two call modes;

The calling unit (12) is configured to perform the first call by using the first call mode in response to the first call instruction;

The switching unit (13) is configured to switch the first call mode to the second call mode to perform a second call when the first call fails, and the second call mode is in the at least two call modes a call mode other than the first call mode.
The terminal (1) according to claim 9, the terminal (1) further comprising: a transmitting unit (14);

The sending unit (14) is configured to send a first call failure message to the network side device;

The receiving unit (10) is further configured to receive a switching instruction sent by the network side device, where the switching instruction is used to indicate disconnecting the priority network and switching to a standby network, where the standby network is the second The network corresponding to the call mode;

The switching unit (13) is configured to switch the first call mode to the second call mode corresponding to the standby network according to the switching instruction, and perform the second call.
The terminal (1) according to claim 9, the terminal (1) further comprising: a display unit (15);

The display unit (15) is configured to obtain a determination result, and display the determination result, where the determination result includes at least two current networks corresponding to the at least two call modes.
A terminal (1) according to claim 11, wherein

The determining unit (11) is configured to determine the priority network from the at least two current networks according to a preset priority principle; or, according to the user's prior priority setting according to the determination result, from the at least The prioritized network is determined in two current networks.
The terminal (1) according to claim 12, the terminal (1) further comprising: a sorting unit (16);

The sorting unit (16) is configured to sort the at least two current networks according to preset indicators;

The determining unit (11) is further configured to determine, according to the sorting result, the current network with the best preset indicator from the at least two current networks as the priority network.
The terminal (1) according to claim 10,

The sending unit (14) is further configured to send a network registration request to the network side device to request access to the at least two current networks, where the at least two current networks correspond to the at least two call modes;

The receiving unit (10) is further configured to receive a first response command sent by the network side device and respond to the network registration request, and implement access of the at least two current networks according to the first response command. .
The terminal (1) according to claim 14, the terminal (1) further comprising: a determining unit;

The determining unit (17) is configured to determine, according to the first response command, whether the at least two call modes are supported.
The terminal (1) according to claim 11,

The calling unit (12) is further configured to: when it is determined that the at least two call modes are not supported, perform the third call by using the acquired third call mode;

The display unit is further configured to display the third call mode, and the third call mode is any one of the at least two call modes.